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WO2013031030A1 - Feuille cosmétique - Google Patents

Feuille cosmétique Download PDF

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Publication number
WO2013031030A1
WO2013031030A1 PCT/JP2011/070413 JP2011070413W WO2013031030A1 WO 2013031030 A1 WO2013031030 A1 WO 2013031030A1 JP 2011070413 W JP2011070413 W JP 2011070413W WO 2013031030 A1 WO2013031030 A1 WO 2013031030A1
Authority
WO
WIPO (PCT)
Prior art keywords
cosmetic sheet
sheet according
skin
cosmetic
cellulose
Prior art date
Application number
PCT/JP2011/070413
Other languages
English (en)
Inventor
Kazuyuki Ohnishi
Jean-Pascal Hirt
Original Assignee
L'oreal
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by L'oreal filed Critical L'oreal
Priority to PCT/JP2011/070413 priority Critical patent/WO2013031030A1/fr
Publication of WO2013031030A1 publication Critical patent/WO2013031030A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/08—Anti-ageing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/731—Cellulose; Quaternized cellulose derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/733—Alginic acid; Salts thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/06—Preparations for care of the skin for countering cellulitis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/22—Gas releasing

Definitions

  • the present invention relates to a cosmetic sheet for the skin, the lips and the like, and a package including the cosmetic sheet, as well as a cosmetic process using the cosmetic sheet.
  • C0 2 carbon dioxide
  • C0 2 can improve blood flow, so that it can exert slimming effects.
  • C0 2 can improve the relief pattern of the skin, make pores on the skin less noticeable, treat acnes and pimples on the skin, make the skin bright and/or white, and/or improve the skin conditions (e.g., by firming, elasticizing or tightening).
  • JP-A-2000-319187 discloses a composition which can be used for slimming and comprises water, a thickening agent, and C0 2 bubbles. The composition is applied onto the skin for the transdermal provision of C0 2 .
  • JP-B-3633930 discloses applying a first
  • nonwoven fabric sheet including an acid and water onto the skin, and applying a second nonwoven sheet including a carbonate onto the first nonwoven fabric sheet to generate C0 2 of the non-bubble type.
  • the nonwoven fabric sheets may be difficult to fit to the skin, in particular, uneven skin such as that of a face, and the lips. Furthermore, when a user is standing or sitting up, the adhesion power of the nonwoven fabric sheets to the skin or the lips may be insufficient, and they may slip down from the skin or the lips.
  • JP-B-3633930 also discloses a laminated sheet in which the above second nonwoven fabric sheet is covered with a plastic film such as a polyethylene film through which C0 2 cannot penetrate.
  • the laminated sheet including the second nonwoven fabric sheet covered with the plastic film is stiff and difficult to fit to the skin, in particular uneven skin such as that of a face.
  • An objective of the present invention is to provide a cosmetic sheet which can well prevent or reduce the evaporation of C0 2 to the atmosphere, so that it can provide sufficient cosmetic effects due to a relatively high concentration of C0 2 for a long time .
  • Another objective of the present invention is to provide a cosmetic sheet which can well fit to the skin, the lips and the like of a user, and therefore, it can be used easily, and can provide a comfortable feeling on use.
  • a cosmetic sheet comprising:
  • At least one substrate comprising at least one gel-forming material
  • At least one aqueous medium comprising 200 ppm or more
  • the pH of the aqueous medium may be 8.0 or less, preferably 7.0 or less, and more preferably 6.0 or less.
  • the carbon dioxide may have been made to dissolve to the aqueous medium by contacting the aqueous medium with the carbon dioxide with a high pressure of from 0.1 to 1 MPa, preferably 0.1 to 0.8 MPa, and more preferably 0.1 to 0.5 MPa.
  • the substrate may be in the form of a gel.
  • the cosmetic sheet may not comprise any woven or nonwoven fabric.
  • fabric here means an aggregate of normal cellulose fibers from plant origin. It is preferable that the normal cellulose fibers have a diameter of 500 nm or more, more
  • fabric here includes not only normal textile but also paper.
  • the gel-forming material be selected from polysaccharides .
  • the polysaccharide be alginic acid or a salt thereof.
  • the polysaccharide be cellulose produced by at least one microorganism.
  • Each cellulose may preferably comprise cellulose microfibrils.
  • the cellulose microfibril may have a diameter of 1 to 100 nm, preferably 2 to 50 nm, and more preferably 3 to 10 nm. It is preferable that the cellulose microfibrils form a network structure.
  • the thickness of the substrate may be 0.01 mm to 5 mm, preferably 0.05 mm to 3 mm, and more preferably 0.1 mm to 2 mm.
  • the substrate comprise at least a part of the aqueous medium.
  • the present invention also relates to a cosmetic process for the treatment of the skin or the lips, comprising a step of applying onto the skin or the lips at least one cosmetic sheet according to the present invention.
  • the treatment may be slimming
  • the present invention also relates to a package comprising at least one cosmetic sheet according to the present invention.
  • Fig. 1 is a front view of an example of a cosmetic sheet
  • the cosmetic composition according to the present invention is characterized by comprising:
  • At least one substrate comprising at least one gel-forming
  • At least one aqueous medium comprising 200 ppm or more
  • the invention can fit well to the skin, even if the skin is uneven or has a nonlinear relief, as well as the lips of a user. Therefore, it can be used easily, and can provide the user with a
  • the cosmetic sheet according to the present invention can be composed of a single sheet, and does not need to be prepared by laminating a plurality of sheets with the use of an adhesive or a heat treatment. Therefore, the cosmetic sheet according to the present invention can be prepared easily. Even if the cosmetic sheet according to the present invention is composed of a single sheet, it can have a good C0 2 -sealing capability.
  • the cosmetic sheet according to the present invention is flexible. Therefore, even if the cosmetic sheet according to the present invention is in the form of a laminated sheet, it can well fit to the skin of a user, even to uneven skin such as that of the face, or the lips of a user. Therefore, the cosmetic sheet according to the present invention can be used easily, and can provide a comfortable feeling on use.. In addition, the cosmetic sheet according to the present invention in the form of a laminated sheet can have a better C0 2 -sealing capability.
  • the substrate according to the present invention comprises at least one gel-forming material.
  • the term "substrate” here means a support of the cosmetic sheet, that the substrate can be composed of a single layer or a plurality of layers. It is preferable that the substrate is composed of a single layer. It is possible that 80 wt%, preferably 90 wt%, and more preferably 100 wt% of the solid content of the substrate be derived from gel-forming material (s)
  • gel-forming material means any substance which can form a gel.
  • a single type of gel-forming material or a combination of different types of gel forming materials may be used.
  • the gel-forming material may be selected from any conventional substances which can form a gel.
  • substances which can form a gel mention may be made of polysaccharides, polyvinyl alcohols, poly (meth) acrylic acids or derivatives thereof, polyacrylamides and derivatives thereof,
  • polyvinylpyrrolidones and derivatives thereof polyvinylethers and derivatives thereof, and mixtures thereof.
  • the gel-forming material is selected from polysaccharides .
  • Polysaccharide is a carbohydrate in which two or more, preferably 10 or more, monosaccharides are linked via a glycoside bond.
  • the polysaccharide used in the present invention may be a simple polysaccharide or a complex polysaccharide such as
  • mucopolysaccharide A single type of polysaccharide may be used, or two or more types of polysaccharides may be used together.
  • gel-forming polysaccharides examples include starch, glycogen, cellulose, chitin, agarose, carrageenan, heparin, hyaluronic acid, pectin, xyloglucan, alginic acid, agar, guar gum, gum Arabic, karaya gum, quince seed gum, konjac mannan, tamarind seed gum, tara gum, dextrin, gum tragacanth, locust bean gum, cardollan, xanthan gum, jellan gum, dextran, pullulan, and derivatives thereof.
  • cellulose derivative ( s ) mention may be made of, carboxy- methyl cellulose, sodium carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose, carboxyethyl cellulose, hydroxyethyl cellulose, hydroxyethylethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl cellulose, sodium methyl cellulose, microcrystalline cellulose, sodium cellulose sulfate, and mixtures thereof.
  • Carboxymethyl cellulose is preferable.
  • the cellulose derivative ( s ) may also be selected from alkyl celluloses. These polymers are obtained by grafting an alkyl residue onto one or more hydroxy groups of the cellulose polymer to form the hydroxyalkyl derivative. These alkyl residues may be selected from the following groups: stearyl, isostearyl, lauryl, myristyl, cetyl, isocetyl, cocoyl, palmityl, oleyl, linonyl, ricinolyl, behenyl, and mixtures thereof. These hydroxyalkyl cellulose derivatives may also be subjected to chemical
  • the gel-forming polysaccharide is selected from alginic acid, cellulose, and derivatives thereof.
  • alginate a salt of alginic acid
  • glycol alginate a salt of glycol alginate
  • Alginic acid which is isolated from seaweed, is a polyuronic acid made up of two uronic acids: D-mannuronic acid and L-guluronic acid. The ratio of mannuronic acid and guluronic acid varies with factors such as seaweed species, plant age, and part of the seaweed (e.g., stem, leaf).
  • Alginic acid is substantially insoluble in water. However, it forms water-soluble salts with alkali metals, such as sodium, potassium, and, lithium; magnesium; ammonium; and the substituted ammonium cations derived from lower amines, such as methyl amine, ethanol amine, diethanol amine, and triethanol amine.
  • the salts are soluble in aqueous media above pH 4, but are converted to alginic acid when the pH is lowered below about pH 4.
  • a water- insoluble alginate is formed if certain polyvalent cations, especially calcium, barium, strontium, zinc, copper(+2), aluminum, and mixtures thereof are present in the medium at appropriate concentrations .
  • Water insoluble alginate salts in which the principal cation is calcium, are found in the fronds and stems of seaweeds of the class Phaeophyceae, examples of which are Fucus vesiculosus,
  • Alginate may be reacted with an alkylene oxide, such as ethylene oxide or propylene oxide, to form a glycol alginate.
  • the glycol is bonded to the alginate through the carboxyl groups.
  • an alginate is reacted with propylene oxide to form propylene glycol alginate (PGA) .
  • PGA propylene glycol alginate
  • the propylene glycol alginate has a degree of
  • Suitable alginates have a weight-average molecular weight of about 20,000 Daltons to about 500,000 Daltons.
  • the weight- average molecular weight is calculated by first determining the intrinsic viscosity, then using the Mark-Houwink Sakurada
  • alginates for example alginates of different molecular weights and/or G content, may be used.
  • bio- cellulose The cellulose produced by the microorganism may be called "bio- cellulose".
  • a single type of bio-cellulose may be used for the present invention.
  • two or more types of bio- celluloses may be used together for the present invention.
  • any microbe can be used as long as it can produce bio-cellulose.
  • a single type of microorganism may be used, or two or more types of microorganisms may be used together. It is preferable to use at least one microbial strain of the genus Acetobacter, the genus Agrobacterium, the genus Rhizobium, the genus Sarcina, the genus Pseudomonas, the genus Achromobacter, the genus Alcaligenes, the genus Aerobacter, the genus
  • Acetobacter Xylinum among the genus Acetobacter is most preferable.
  • the bio-cellulose can be produced by culturing at least one microorganism which can produce bio-cellulose, such as those listed above.
  • the mode of culturing the microorganism is not limited.
  • a static culture mode or a spinner culture mode may be employed.
  • a microorganism which can produce bio-cellulose will be seeded on a culture medium and incubated at a temperature of, for example, from 10 to 40 °C, preferably from 25 to 40°C, and for a time period of, for example, from 1 to 60 days, preferably from 5 to 14 days.
  • the cellulose produced by the microorganism will accumulate at the surface of the culture medium to form a cellulose membrane.
  • the thickness of the cellulose membrane will increase as the culture of the microorganism proceeds.
  • the cellulose membrane can be in the form of a sheet. It is preferable to employ the static culture mode, since the collection of the cellulose membrane or sheet is easy.
  • the conditions for culturing the microorganism are not limited either.
  • any type of culture medium can be used as long as it can increase the microorganism which can produce the bio-cellulose.
  • the culture medium includes sources of carbon, nitrogen, and the like, as well as inorganic salts, amino acids, vitamins and the like. It is possible to use a culture medium including natural ingredients from plants such as grains (for example, rice and wheat), vegetables (for example, cabbage and onion), and fruits (for example, orange and
  • the obtained bio-cellulose may have less odor, and the culture medium can be handled safely.
  • a culture medium including semi- natural or non-natural ingredients such as purified or modified natural ingredients (e.g., purified sugars) or chemicals (e.g., synthesized sweetners).
  • the pH of the culture medium can be adjusted depending on the type of the microorganism. It is possible that the pH of the culture medium is from 2 to 9.
  • the pH of the culture medium is from 2.5 to 7, and more preferably 3 to 5, because the
  • the bio-cellulose comprises cellulose microfibrils.
  • cellulose microfibril has a diameter of 1 to 100 nm, preferably 2 to 50 nm, and more preferably 3 to 10 nm.
  • microfibrils can form a network structure wherein microfibrils are entwined with each other. It is preferable that the network structure is dense, in view of the strength of the bio-cellulose.
  • the cellulose fibers of a woven or non-woven cotton fabric sheet or even a paper sheet have a micron-order diameter such as 10 to 100 ⁇ .
  • the cellulose microfibrils are very fine such that they have a nano-order diameter such as 2 to 100 nm. Therefore, the macroscopic appearance of bio-cellulose is not similar to that of a woven or non-woven cotton fabric sheet or a paper sheet. Rather, bio-cellulose appears like agar or gelatin. Therefore, in the field of foods, bio-cellulose is well-known as the material of "nata de coco".
  • the bio-cellulose obtained just from a culture medium with water because the microorganism can be removed, and because it may include the ingredients in the culture medium or organic acids derived from the microorganism ( s ) in the culture medium.
  • the bio-cellulose obtained from the genus Acetobacter may include acetic acid. Therefore, it is possible to treat the bio-cellulose with alkali such as a sodium hydroxide aqueous solution. After treating the bio- cellulose with alkali, for safety reasons, the bio-cellulose may be treated with acid in order to neutralize the pH.
  • bio-cellulose it is also preferable to wash the bio-cellulose with water without treating it with acid until the pH of the water becomes to the neutral range.
  • Bio-cellulose can contain water. Therefore, the cosmetic sheet according to the present invention can preferably contain water.
  • the cosmetic sheet according to the present invention which includes water can also have moisturizing or hydrating effects for the skin and the lips by alleviating dryness and wrinkles thereon .
  • bio-cellulose has a unique feeling on touch, such as a cool feeling.
  • the cosmetic sheet according to the present invention can provide a comfortable feeling on use based on the unique feeling on touch based on the bio-cellulose.
  • the cellulose produced by microorganism ( s ) is relatively strong.
  • it has a high tensile strength as compared to other natural polymers such as polyglutamic acid. Accordingly, the cosmetic sheet according to the present
  • invention may not be broken but kept adhered onto the skin even though the skin moves when, for example, exercising.
  • the substrate used in the cosmetic sheet according to the present invention has no or substantially small carbon dioxide
  • the cosmetic sheet according to the present invention can prevent or reduce the evaporation of C0 2 to the atmosphere, and can provide sufficient cosmetic effects due to a relatively high concentration of C0 2 .
  • the substrate comprising at least one gel- forming material such as polysaccharide, in particular alginate or cellulose produced by microorganism ( s )
  • the cosmetic sheet according to the present invention can suitably fit the skin, even the skin of a face, or the lips which has or have complicated surfaces and does or do not have a flat surface. Therefore, the cosmetic sheet according to the present invention can be used easily even when a user is standing or sitting up.
  • the substrate is in the form of a gel, because the substrate can have more flexibility.
  • the gel is more preferable that the substrate is in the form of a gel, because the substrate can have more flexibility.
  • At least one gelling agent can be used to form a gel.
  • a single type of gelling agent may be used, or two or more types of gelling agents may be used together.
  • a gelling agent or agents can preferably be used.
  • a gelling agent or agents may be added to a gel-forming
  • polysaccharide such as alginate preferably dissolved or dispersed in an aqueous medium to form a gel.
  • the gelling agent may comprise a polyvalent cation, typically a divalent and/or a trivalent cation, or a mixture of polyvalent cations capable of gelling the gel-forming polymer.
  • Suitable polyvalent cations include, for example, calcium(2+), barium(2+), strontium(2+ ) , iron(2+ ), zinc (2+) , copper (2+ ) , and aluminum ( 3+) .
  • Preferred cations are divalent metal cations, more preferably the calcium (2+) cation.
  • a salt or combination of salts that provides the desired gelling polyvalent cation or mixture of polyvalent cations can be used as the gelling agent.
  • the gelling agent may be insoluble in water, but releases an ion capable of forming a gel in an acidic
  • gelling agent may be soluble in water but the ion capable of forming a gel is complexed and becomes available only under acidic conditions.
  • useful gelling agents include salts, such as the following, their hydrates, and mixtures thereof: calcium carbonate, calcium disodium edetate, calcium oxalate, dicalcium phosphate, tricalcium phosphate, tricalcium citrate, strontium carbonate, barium carbonate, cupric carbonate, zinc carbonate, zinc oxalate, and zinc phosphate.
  • Preferred gelling agents are those that also provide a buffering effect and/or consume acid when the polyvalent cation is released. These include for example, bicarbonates , carbonates, and
  • a preferred gelling agent especially for alginate, pectin and carrageenan, is calcium
  • Aluminum ions are useful for gelling glycol alginates, which typically do not gel with calcium ions.
  • the gel may be foamed.
  • at least one foaming agent can be used to foam the gel.
  • a single type of foaming agent may be used, or two or more types of foaming agents may be used together.
  • a foaming agent or agents can preferably be used.
  • a foaming agent or agents may be added together with the gelling agent (s) to a gel-forming material, in particular a polysaccharide such as alginate, preferably dissolved or
  • foaming agent may be a polymeric foaming agent, a surfactant, or a mixture thereof.
  • Polymeric foaming agents such as surface active hydrocolloids
  • surface active hydrocolloids include methyl cellulose, hydroxy propyl methyl cellulose (HPMC) , hydroxy propyl cellulose (HPC) , and hydroxy ethyl cellulose (HEC) .
  • the polymeric foaming agent is preferably soluble in water so that a homogeneous gelled foam is produced.
  • a preferred water soluble foaming agent is hydroxy propyl methyl cellulose.
  • Hydroxy propyl methyl cellulose produces small bubbles that last until gelation occurs.
  • Emulsifiers and Laughlin, U.S. Pat. No. 3,929,678, incorporated herein by reference.
  • Nonionic surfactants are typically condensation products of a hydrophobic organic aliphatic or alkyl aromatic compound and hydrophilic ethylene oxide and/or propylene oxide.
  • the length of the resulting polyether chain can be adjusted to achieve the desired balance between the hydrophobic and hydrophilic
  • Nonionic surfactants include, for example,
  • alkyl phenols containing from about 8 to 18 carbon atoms in a straight- or branched-chain alkyl group such as t- octyl phenol and t-nonyl phenol with about 5 to 30 moles of ethylene oxide, for example nonyl phenol condensed with about 9.5 moles of ethylene oxide, dinonyl phenol condensed with about 12 moles of ethylene oxide; ethoxylated and propoxylated alcohols, especially Cio-20 alcohols, with 2 to 100 moles of ethylene oxide and/or propylene oxide per mole of alcohol, especially
  • ethoxylates of primary alcohols containing about 8 to 18 carbon atoms in a straight or branched chain configuration with about 5 to 30 moles of ethylene oxide for example, the ethoxylates of decyl alcohol, cetyl alcohol, lauryl alcohol, or myristyl
  • polyoxyethylene sorbitan trioleate TWEEN® 85
  • anionic surfactants are sodium stearate, sodium cetyl sulfate, sodium lauryl sulfate, ammonium lauryl sulfate,
  • a preferred anionic surfactant is sodium lauryl sulfate (sodium dodecyl sulfate) .
  • Cationic surfactants include, for example, quaternary ammonium salts, such as cetyl trimethylammonium bromide, lauryl trimethyl ammonium chloride, alkyl benzyl methyl ammonium chlorides, alkyl benzyl dimethyl ammonium bromides, cetyl pyridinium bromide, and halide salts of quaternized polyoxyethylalkylamines .
  • quaternary ammonium salts such as cetyl trimethylammonium bromide, lauryl trimethyl ammonium chloride, alkyl benzyl methyl ammonium chlorides, alkyl benzyl dimethyl ammonium bromides, cetyl pyridinium bromide, and halide salts of quaternized polyoxyethylalkylamines .
  • Zwitterionic or amphoteric surfactants can also be used.
  • the substrate comprise water, preferably at least a part of the aqueous medium comprising dissolved C0 2 mentioned below.
  • C0 2 can be provided gradually from the substrate so that the cosmetic effects due to the C0 2 can last for a long time.
  • the thickness of the substrate may vary.
  • the thickness of the substrate can be, for example, from 0.01 mm to 5 mm, preferably from 0.05 mm to 3.0 mm, and more preferably from 0.1 to 2.0 mm.
  • the cosmetic sheet according to the present invention comprises at least one aqueous medium comprising 200 ppm or more,
  • the cosmetic sheet according to the present invention can prevent the C0 2 from being evaporated into the air.
  • the aqueous medium here means water or an aqueous solution including water and optionally at least one other ingredient such as a thickening agent and a cosmetic ingredient explained later.
  • the content of water in the aqueous medium may be 50 to 100 wt%, preferably 60 to 95 wt%, and more preferably 70 to 90 wt%,
  • the pH of the aqueous medium is 8.0 or less, preferably 7.0 or less, more preferably 6.0 or less, and further more preferably 5.0 or less. If the pH of the aqueous medium is 8.0 or less, C0 2 can be present in the aqueous medium mainly in the form of dissolved C0 2 without being transformed to a carbonate ion (C0 3 2 ⁇ ) or a bicarbonate ion (HC0 3 " ) . In order to improve blood flow, the use of C0 2 (not a carbonate ion or a bicarbonate ion) is preferable.
  • Carbon dioxide can be dissolved to the aqueous medium by any method.
  • the aqueous medium can be contacted with carbon dioxide gas with a high pressure of from 0.1 to 1 MPa, preferably 0.1 to 0.8 MPa, and more preferably 0.1 to 0.5 MPa.
  • the dissolution of C0 2 in the aqueous medium be performed at 30°C or less, preferably 25°C or less, and more preferably 20°C or less.
  • an aqueous medium can be charged in a pressure bottle, and then C0 2 gas with a high pressure can be introduced into the pressure bottle. It is preferable that the aqueous medium have already been deaerated before being charged into the pressure bottle.
  • an autoclave may be used as the pressure bottle. If the viscosity of the aqueous medium is high, this
  • embodiment is preferable. It is preferable to agitate the
  • an aqueous medium and a high pressure C0 2 gas can be introduced into a static mixer under circulation. It is preferable that the aqueous medium have already been deaerated before going through the static mixer.
  • an aqueous medium can be introduced into a hollow fiber module, and high pressure C0 2 can be provided to the hollow fiber module such that the C0 2 can penetrate into the aqueous medium via the wall of the hollow fiber. If the viscosity of the aqueous medium is low, this embodiment is preferable .
  • dry ice may be put into an aqueous medium in a pressure bottle, and left for a while. It is preferable to agitate the aqueous medium.
  • any conventional device such as a stirrer may be used.
  • the aqueous medium can comprise at least one thickening agent.
  • the type of thickening agent is not limited. A single thickening agent or a combination of two or more thickening agent may be used.
  • the thickening agent mention may be made of silicas, notably hydrophobic; clays such as montmorillonite, modified clays such as bentones for example, stearalkonium bentonite, stearalkonium hectorite; and the like.
  • the amount of thickening agent can range from 0.05 to 40 wt%, preferably from 0.5 to 20 wt%, and more preferably from 1 to 15 wt%, relative to the total weight of the aqueous medium.
  • the aqueous medium can comprise at least one cosmetic ingredient.
  • the cosmetic ingredient ( s ) may be water-soluble or liposoluble.
  • the water-soluble cosmetic ingredient ( s ) may be chosen from the following compounds: ascorbic acid and its biologically- compatible salts, enzymes, antibiotics, tightening agents, a- hydroxy acids and their salts, hydroxylated polyacids, sucroses and their derivatives, urea, amino acids, oligopeptides, water- soluble plant extracts and yeast extracts, protein hydrolysates , hyaluronic acid, mucopolysaccharides, vitamins B 2 , B 6 , H, PP, panthenol, folic acid, salicylic acetyl acid, allantoin,
  • the liposoluble cosmetic ingredient ( s ) may be chosen from the following compounds: d- -tocopherol , dl-a-tocopherol, 1-a- tocopherol, dl-a-tocopherol acetate, ascorbyl palmitate, vitamin F and glycerides of vitamin F, vitamin D, vitamin D 2 , vitamin D 3 , retinol, retinol esters, retinol palmitate, retinol propionate, ⁇ -carotene, d-panthenol, farnesol, and farnesyl acetate;
  • keratolytics such as salicylic acid, its salts and its esters, n- octanoyl-5 salicylic acid and its esters, a-hydroxyacid
  • alkylesters such as citric acid, lactic acid, glycolic acid, asiatic acid, madecassic acid, asiaticoside, total extract of centella asiatica, ⁇ -glycyerrhetinic acid, a-bisabolol, and ceramides such as 2 oleoylamino-1, 3 octadecane, phytanetriol, milk sphingomyelin, phospholipids of marine origin rich in polyunsaturated essential fatty acids, and ethoxyquin, rosemary extract, melissa extract, quercetin, extract of dried microalgae, and steroid anti-inflammatory agents.
  • citric acid lactic acid, glycolic acid, asiatic acid, madecassic acid, asiaticoside, total extract of centella asiatica, ⁇ -glycyerrhetinic acid, a-bisabolol, and ceramides such as 2 oleoylamino-1, 3
  • the aqueous medium may comprise additional cosmetic active ingredients which are commonly used in cosmetics.
  • additional cosmetic active ingredients which are commonly used in cosmetics.
  • cosmetic active ingredients to be used mention may be made of anti-oxidant cleansing agents, free radical scavengers,
  • moisturizers depigmenting agents, liporegulators, anti-acne agents, antidandruff agents, anti-aging agents, softeners, antiwrinkle agents, keratolytic agents, anti-inflammatory agents, fresheners, healing agents, vascular protectors, antibacterial agents, antifungal agents, antiperspirants, deodorants, skin conditioners, anesthetics, immunomodulators, nourishing agents, and sebum absorbers (e.g. Orgasol) or moisture absorbers.
  • moisturizers e.g. Orgasol
  • the amount of the cosmetic ingredient agent or the additional cosmetic active ingredient can range from 0.01 to 50 wt%,
  • aqueous medium preferably from 0.1 to 30 wt%, and more preferably from 1 to 10 wt%, relative to the total weight of the aqueous medium.
  • the cosmetic sheet according to the present invention can be prepared by combining the above substrate and the above aqueous medium.
  • the substrate can be immersed in the aqueous medium in order for the substrate to absorb at least a part of the aqueous medium. If the viscosity of the aqueous medium is high, the cosmetic sheet can be prepared by applying the aqueous medium onto the substrate.
  • the cosmetic sheet according to the present invention may preferably be used for cosmetically treating the face skin or the lips, it is preferable that the shape of the cosmetic sheet according to the present invention is such that it can cover the face or the lips of a user . Since the face is symmetric in terms of the center longitudinal axis of the face, it is preferable for the shape of the cosmetic sheet according to the present invention have C 2v symmetry such as a general oval shape.
  • Fig. 1 shows a front view of an example of a cosmetic sheet according to the present invention.
  • the cosmetic sheet shown in Figure 1 is intended to be applied onto the face, and is formed by a single substrate sheet (1) having holes (2,2) for the eyes, a hole (3) for the nose, and a hole (4) for the mouth. Any of the holes (2,2,3,4) may be replaced with slit(s) to uncover the eyes, nose and/or mouth.
  • the substrate sheet (1) may have a tab or tabs, preferably on the outline thereof, for facilitating the handling of the cosmetic sheet.
  • the dotted and dashed line (C) in Figure 1 corresponds to a longitudinal center line of the substrate sheet (1).
  • longitudinal center line (C) shown in Figure 1 defines a center line of the substrate sheet (1) and is positioned to pass over the hole (3) for the nose as well as the hole (4) for the mouth.
  • the longitudinal center line (C) shown in Figure 1 functions as a longitudinal symmetric axis for the substrate sheet (1) .
  • the cosmetic sheet shown in Figure 1 can be applied to the face to cover the skin such that the aqueous medium can contact the skin .
  • the cosmetic sheet according to the present invention may be used for any part of the body such as legs or waist. In such a case, the shape of the cosmetic sheet according to the present
  • the cosmetic sheet according to the present invention may consist of a substrate, or may comprise the substrate and one or more additional layers thereon.
  • the substrate may contain the above cosmetic ingredient ( s) .
  • the cosmetic sheet according to the present invention comprises at least one additional layer in addition to the substrate, the additional layer and/or the substrate may contain the above cosmetic ingredient (s) .
  • the material of the additional layer (s) is not limited, and therefore any material can be used for preparing the additional layer (s). Two or more different materials may be used.
  • the material of the additional layer (s) may be a woven or non- woven fabric made of natural fibers such as cotton, pulp, bamboo and paper cellulose fibers, semi-natural fibers such as viscose rayon fibers and synthetic fibers such as polyester fibers, polyethylene terephthalate fibers, polyethylene fibers, and polypropylene fibers. Two or more selected from the above fibers may be used in combination.
  • the material of the additional layer (s) may be a film or sheet made from at least one selected from synthetic polymers such as polyethylenes and polyvinylalcohols , semisynthetic polymers such as alginates, and natural polymers such as polypeptides (e.g., ⁇ -polyglutamic acid) and proteins (e.g., gelatin and collagen) .
  • the film or sheet may be in the form of a gel or a jelly which may be transparent, translucent or opaque. Two or more selected from the above substances may be used in combination .
  • each additional layer may be the same or different from each other.
  • the additional layers may be prepared by laminating the above film or sheet made from a synthetic polymer, a semisynthetic polymer and/or a natural polymer on the above woven or non-woven fabric.
  • the thickness of the additional layer is not limited.
  • the thickness of the additional layer can be, for example, from 1 nm to 2.0 mm, preferably from 10 nm to 1.0 mm, and more preferably from 100 nm to 0.5 mm.
  • the cosmetic sheet according to the present invention with the above additional layer (s) can be prepared by, for example, applying a gel-forming material onto the additional layer (s), or applying the additional layer (s) onto a gel forming material.
  • the cosmetic sheet according to the present invention with the above additional layer(s) can be prepared by, for example, culturing microorganism to produce the bi-cellulose on the additional layer (s) .
  • the cosmetic sheet according to the present invention is preferably composed of only a substrate, because it is easy to prepare the cosmetic sheet, and the flexibility of the cosmetic sheet will be enhanced. Accordingly, for example, the cosmetic sheet according to the present invention may not comprise any woven or nonwoven fabric.
  • the cosmetic sheet according to the present invention may be contained in a container to prepare a package.
  • the container may preferably be a bag or sack made from any material, preferably a plastic or metal film.
  • the present invention relates to a package comprising the cosmetic sheet according to the present invention. If necessary, the cosmetic sheet according to the present invention may be folded.
  • the above package comprising the cosmetic sheet according to the present invention further contains a cosmetic composition, preferably in the form of a liquid,
  • the cosmetic sheet according to the present invention can be used for a cosmetic process for beautifying the skin or the lips.
  • the cosmetic process according to the present invention is intended for treating the skin, preferably the skin of the face, or the lips, comprising a step of applying onto the skin or the lips at least one cosmetic sheet according to the present
  • the cosmetic process according to the present invention can preferably be intended for slimming, improving the relief pattern of the skin, making pores on the skin less noticeable, treating acnes and pimples on the skin, making the skin bright and/or white, and/or improving the skin conditions.
  • the cosmetic sheet according to the present invention may be applied onto the skin of the body and/or the face, and/or the lips of a user . It has been known that C0 2 has effects of accelerating blood flow by the vasodilatation of blood vessels, which contribute to slimming and activating the skin such as increasing skin turnover.
  • C0 2 in blood will increase free 0 2 due to the Bohr effect (C0 2 encompassed in red blood cells cause with water to produce HC0 3 - and H+, so that the pH in the red blood cells is reduced, which results in the low affinity of the hemoglobin in the blood red cells with oxygen) .
  • the free oxygen (0 2 ) can contribute to inactivate bacteria or the like, and can provide healing or treating effects.
  • the carbon dioxide in the cosmetic sheet according to the present invention can have
  • a substrate comprising at least one gel- forming polysaccharide such as bio-cellulose and/or alginic acid or a salt thereof, and preferably water, it can be especially easily or simply used by being applied onto the skin, preferably the skin of the face, or the lips.
  • aqueous medium in the cosmetic sheet according to the present invention comprises at least one cosmetic ingredient, or if the cosmetic sheet according to the present invention
  • the cosmetic process can be simplified, because a step of applying at least one cosmetic product onto the skin or the lips may be omitted.
  • the cosmetic sheet according to the present invention it is possible to leave the cosmetic sheet according to the present invention on the skin or the lips for from 1 minute to 60 minutes, preferably from 10 minutes to 45 minutes, and more preferably from 15 minutes to 30 minutes.
  • the cosmetic sheet according to the present invention comprises water
  • the cosmetic sheet according to the present invention can also ameliorate wrinkles, in particular, not only fine lines but also deep lines such as nasolabial folds, and dryness of the skin or the lips.
  • a high pressure (0.2 MPa) gas of C0 2 was provided from a C0 2 gas high pressure tank into a pressure bottle including an aqueous solution under agitation to dissolve the C0 2 gas into the aqueous solution.
  • a cosmetic lotion including dissolved C0 2 was prepared.
  • the concentration of C0 2 in the cosmetic lotion was 1,580 ppm.
  • each of the following sheets was immersed in the above cosmetic lotion in order for each sheet to absorb the cosmetic lotion.
  • Comparative Example 1 Spunlace nonwoven sheet (rayon fiber 45% and pulp fiber 55%) with a basis weight of 80 g/m 2
  • Comparative Example 1 with a cosmetic lotion including C0 2 were prepared.
  • test sheet according to Example 1 has lower air permeability so that it can better hold C0 2 as compared to the test sheet according to Comparative Example 1.
  • test sheet according to Example 1 is applied onto half of the face of a female panelist, while the test sheet according to
  • Comparative Example 1 is applied onto the other half of the face of the female panelist. Both test sheets are left for 10 minutes. Then, both test sheets are removed from the face.
  • the blood flow on the face is measured with a laser doppler blood flow rate measurement device (Integral Corporation). It is found that the blood flow on the half of the face to which the test sheet according to Example 1 is applied is higher than that on the other half of the face to which the test sheet according to Comparative Example 1 is applied.
  • test sheet according to Example 1 can provide better cosmetic effects derived from C0 2 gas such as slimming and skin turnover than the test sheet according to Comparative

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  • Cosmetics (AREA)

Abstract

La présente invention concerne une feuille cosmétique qui comprend: au moins un substrat comprenant au moins un matériau gélifiant; et au moins un support aqueux comprenant 200 ppm ou plus, de préférence 1000 ppm ou plus, et préférablement 1500 ppm ou plus, de dioxyde de carbone dissout dans le milieu aqueux. La feuille cosmétique de l'invention peut offrir des effets cosmétiques suffisants grâce au maintien d'une concentration relativement élevée de CO2 durant une longue période, et peut bien s'ajuster à la peau, aux lèvres et analogue de l'utilisateur, c'est pourquoi elle peut être aisément utilisée, et permet de fournir une sensation de confort lors de son utilisation.
PCT/JP2011/070413 2011-09-01 2011-09-01 Feuille cosmétique WO2013031030A1 (fr)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3081209A1 (fr) 2015-04-13 2016-10-19 Borregaard AS Compositions de soins pour la peau contenant de la cellulose microfibrillée
EP3081208A1 (fr) 2015-04-13 2016-10-19 Borregaard AS Compositions de pulvérisation pour soins de la peau contenant de la cellulose microfibrillée
EP3739119A4 (fr) * 2018-01-10 2021-11-03 Oji Holdings Corporation Feuille
IT202000017485A1 (it) 2020-07-17 2022-01-17 Davines S P A Formulazioni cosmetiche per il trattamento di capelli con migliorate proprietà

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3081209A1 (fr) 2015-04-13 2016-10-19 Borregaard AS Compositions de soins pour la peau contenant de la cellulose microfibrillée
EP3081208A1 (fr) 2015-04-13 2016-10-19 Borregaard AS Compositions de pulvérisation pour soins de la peau contenant de la cellulose microfibrillée
WO2016166179A1 (fr) * 2015-04-13 2016-10-20 Borregaard As Compositions pour soins de la peau comprenant de la cellulose microfibrillée
CN107645950A (zh) * 2015-04-13 2018-01-30 宝利格股份有限公司 包含微原纤化纤维素的皮肤护理组合物
CN107645950B (zh) * 2015-04-13 2021-04-20 宝利格股份有限公司 包含微原纤化纤维素的皮肤护理组合物
EP3739119A4 (fr) * 2018-01-10 2021-11-03 Oji Holdings Corporation Feuille
IT202000017485A1 (it) 2020-07-17 2022-01-17 Davines S P A Formulazioni cosmetiche per il trattamento di capelli con migliorate proprietà
WO2022013900A1 (fr) 2020-07-17 2022-01-20 Davines S.P.A. Formulations cosmétiques pour le traitement capillaire ayant des propriétés améliorées

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